<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17-beta.0/vue.js"></script>
</head>
<body>
    <div id="test" @click="handleClick">
        {{msg}}
    </div>
    <script>
    new Vue({
        el:"#test",
        data:{
            msg:"hellos world"
        },
        methods:{
            handleClick(){
                this.msg="change"
            }
        }
    })
    </script>
</body>
</html>